diff options
Diffstat (limited to 'memlayout.h')
| -rw-r--r-- | memlayout.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/memlayout.h b/memlayout.h index d1615f7..87818d3 100644 --- a/memlayout.h +++ b/memlayout.h @@ -2,13 +2,14 @@ #define EXTMEM 0x100000 // Start of extended memory #define PHYSTOP 0xE000000 // Top physical memory -#define DEVSPACE 0xFE000000 // Other devices are at high addresses +#define DEVSPACE 0xFE000000 // Other devices are top of 32-bit address space +#define DEVSPACETOP 0x100000000 // Key addresses for address space layout (see kmap in vm.c for layout) -#define KERNBASE 0x80000000 // First kernel virtual address +#define KERNBASE 0xFFFFFF0000000000 // First kernel virtual address #define KERNLINK (KERNBASE+EXTMEM) // Address where kernel is linked -#define V2P(a) (((uint) (a)) - KERNBASE) +#define V2P(a) (((uint64) (a)) - KERNBASE) #define P2V(a) ((void *)(((char *) (a)) + KERNBASE)) #define V2P_WO(x) ((x) - KERNBASE) // same as V2P, but without casts |